baber/WOPTO huggingface dataset:
Patent DE-3826668-A1 (DE)
Title: Eccentric worm for screw pumps, and method for manufacturing it
Inventor: MAURER DIETRICH DIPL ING
IPC: F04C2/107
Filed: 1988-08-05
Abstract: The invention relates to an eccentric worm for screw pumps for delivering abrasive media, which has a screw spindle which consists of viscoelastic metal and on which a sleeve which carries the screw configuration and is made of wear-resistant material, preferably of ceramic material, is fixed, a separate-application adhesive (mixed adhesive, two-component adhesive) being used. The invention further relates to a process for manufacturing eccentric worms of this type for screw pumps.
Patent DE-3831745-A1 (DE)
Title: Dishwashing or washing machine with a feeding device for agent to be added
Inventor: WISSKIRCHEN MICHAEL
IPC: A47L15/44
Filed: 1988-09-19
Abstract: A dishwashing or washing machine with a feeding device (1) which feeds a metered quantity, made available in a metering vessel (3, 5), of an agent to be added, at a given time of the working programme, into the washing chamber, is improved with regard to the use of liquid agent to be added. The machine contains a storage container (6), for example, for one litre of liquid cleaner. The container is connected to the metering vessels (3, 5) which can preferably be inspected during the filling operation, via an inflow control device (7, 9) so that during each individual filling operation the metered quantity can be determined by the operating person. The metering vessels can be openly accessible, if necessary closable, tubs or other special vessels which can be filled in the open or closed state of the door by way of inlet or pumps. <IMAGE>
Patent DE-3832510-A1 (DE)
Title: Steering system for vehicles
Inventor: RABE HERMANN
IPC: B62D7/15
Filed: 1988-09-24
Abstract: A steering system for a motor vehicle with a front-wheel steering system and a hydraulic rear-wheel steering system is described. The rear-wheel steering system has a control valve arrangement (1) which is driven by a rotatable spatial cam (24) which is moved by the steering and acts on an axial piston slide (4) within the control valve arrangement (1). By means of an axial displacement of the spatial cam (24) via a control motor (44) which is effective as a function of the speed of the vehicle, the axial piston slide (4) can be acted on with different cam paths (40, 41). The axial piston slide (4) controls, by opening and closing orifices (14, 15), the pressures prevailing on both sides of a working piston (29) by means of a pressure medium. In this way, the working piston (29) can be displaced. The movement is passed onto the rear wheels via steering connection components (not illustrated in greater detail). At the same time, a sliding sleeve (3) which causes the orifices (14, 15) to close is also moved. In this way, identical pressures prevail on both sides of the working piston (29) so that ultimately the rear wheels are no longer moved by the steering. The adjustment of the axial piston slide (4) by a descending cam path (41) and a rising cam path (40) permits the rear wheels to be locked optionally in the same direction or in the opposite direction to the front wheels (Figure 1). <IMAGE>
Patent DE-3835073-A1 (DE)
Title: Electrical switch for a motor vehicle window winding device
Inventor: SPADA RICCARDO
IPC: H01H13/36
Filed: 1988-10-14
Abstract: An electrical switch having a rapid snap-action switching movement for a motor vehicle window winding device having     a plastic supporting body (1), a first stationary contact (6) and a second stationary contact (7) which are held in a mutually facing position in the interior of the supporting body (1), a moving contact (12) which consists essentially of a laminate, one free end of which is located with play between the two stationary contacts (6, 7), a control lever (16) which is mounted in the supporting body (1) such that it can pivot and is connected to the other end of the laminate (13), a leaf spring (18) which is arranged between the laminate (13) and a part which is mounted on the supporting body (1) such that it holds the free end of the laminate (13) in contact with the first stationary contact (6), and an operating key (2) which is mounted on the supporting body (1) such that it can pivot and can be pressed against one end of the said control lever (16) in order to move the free end of the laminate (13) into contact with the second stationary contact (7), the leaf spring (18) being constructed and arranged such that the transition of the laminate (13) from the first position into the second position takes place with a rapid snap-action movement.   <IMAGE>
Patent DE-3837724-A1 (DE)
Title: Carbon material and process for its production
Inventor: MURAMATU KAZUO
IPC: C01B31/02
Filed: 1988-11-07
Abstract: The invention relates to a carbon material which comprises amorphous carbon containing spherical crystals having a void diameter in the crystallite of 30  ANGSTROM  or less and an apparent specific gravity of 1.80 or more, and also a process for producing such a carbon material in which a heat-curable resin, which on heating is converted into amorphous carbon, is carbonised by shaping, preheating the shaped heat-curable resin to a temperature of from 1000 to 1900@C and applying to the preheated body an isotropic pressure of 1000 atmospheres or more at a temperature of 2050@C or more.
Patent DE-3837947-A1 (DE)
Inventor: SCHMID KARL HEINZ DR
IPC: C11D1/72
Filed: 1988-11-09
Abstract: Mixtures of fatty alcohols, Rmix-OH, of natural origin, in particular of purely vegetable origin, and of their ethoxylates with improved low-temperature behaviour and of general formula Rmix-O-(CH2CH2O)x-H, where x is a number from 2 to 10 and Rmix- denotes selected mixtures of saturated and olefinically unsaturated fatty-alcohol hydrocarbon residues in the range C 6 to C 20 or C 12 to C 20, which correspond, for the range of chain lengths Rmix = C 6 to C 20, to specification (I) and, for the range of chain lengths Rmix = C 12 to C 20, to specification (II).
Patent DE-3840823-A1 (DE)
Title: Window washing device for motor vehicles
Inventor: RUPPERT FRANZ DIPL ING
IPC: B60S1/34
Filed: 1988-12-03
Abstract: A window washing device for the windscreen of motor vehicles has a wiper arm (1) which bears a wiper blade and is mounted on an output shaft (3) of a gear system (4) which is located in a gear box (5). A gear input wheel (8) is permanently connected to a vehicle wall (6) and is in connection via a gear train, for example a toothed belt drive (19), which transmits in the opposite direction, to a gear output wheel (18) which is connected to the output shaft (3). In the event of a pivoting movement of the gear housing (5), the wiper arm (1) executes a movement which produces a non-circular wiping field from two superimposed circular movements in opposite directions. <IMAGE>
Patent DE-3901840-A1 (DE)
Title: Door locking system in building - has additional chain lock also protecting screws of holder on frame
Inventor: VOGELSANG HEDWIG
IPC: E05B73/00
Filed: 1989-01-23
Abstract: The door-locking system incorporates a chain (3) on the indoor side placed over a first holder on the door itself, e.g.  the handle, and over a second one screwed to the frame or wall.  With the door slightly open, the free ends of the chain can be secured together by a padlock from the outside. A lock (6) protects the screws (12) of the second holder (4), and also engages with the chain itself. USE/ADVANTAGE - The second holder cannot be released with the door locked.
Patent DE-3903137-A1 (DE)
Inventor: SCHUSTER JOHANN DR
IPC: C01B21/097
Filed: 1989-02-02
Abstract: The compositions contain phosphoronitride chlorides and/or reaction products thereof which accelerate the condensation and/or equilibration of organo(poly)siloxanes, and halogen-free organic solvents and solubilisers and are used for the condensation and/or equilibration of organo(poly)siloxane.
Patent DE-3903305-A1 (DE)
Inventor: GMEINER GUENTER DIPL ING
IPC: B60S1/38
Filed: 1989-02-04
Abstract: A windscreen wiper blade element comprises a body portion 3, 16 and lip portion 5, 19 which may be pivoted relative thereto either by adjusting the pressure in chambers 8, 9 so that the pressure in one is greater than that in the other or by means of induction coils 22, 23 interacting with metal plates 24, 25, or magnetisable particles in the lip portion. <IMAGE>
Patent DE-3906368-A1 (DE)
Title: Method for producing a stator magnetic circuit of rotating electrical machines or a magnetic circuit of transformers, and a magnetic circuit thus obtained
Inventor: FELISA PIERINO
IPC: H02K1/16
Filed: 1989-03-01
Abstract: The invention is in the field of design technology of magnetic circuits of electrical machines. The method provides, in particular, the formation of cores of stamped-out magnetic metal sheets which are joined to one another and are connected to one another on the sides which rest against one another. The cores can be connected by welding on the sides resting against one another or by means of a plug system between connecting attachments and grooves (12, 13) in the metal sheets of a core with the metal sheets of the adjacent core. <IMAGE>
Patent DE-3906658-A1 (DE)
Title: Method of producing dental cast objects
Inventor: KOHLER WOLFGANG
IPC: A61C13/20
Filed: 1989-03-02
Abstract: The invention relates to a method of producing dental cast objects in which the casting flask is surrounded by a heat protecting hood on transfer from the preheat oven to the casting apparatus. This heat protecting hood is heated in the preheat oven simultaneously with the casting flask and is pulled over the latter only shortly before transfer of the casting flask, so that heating of the flask in the preheating oven is not adversely affected. Furthermore, the invention provides a cylindrical heat insulating ring which ensures an appropriate wall thickness in the region of the sprue and the button.
Patent DE-3907411-A1 (DE)
Title: Intermediate station for a digital signal transmission system
Inventor: SCHEFFLER HARTMUT DIPL ING
IPC: H04L25/24
Filed: 1989-03-08
Abstract: The invention relates to an intermediate station for a digital signal transmission system in electrical communications for the transmission of 30 telephone channels according to the PCM (pulse code modulation multiplexing) method. A transmission system of this type comprises the two terminal stations and the intermediate regenerators disposed between them. Each terminal station has a line terminating unit. A locating device can be connected to the line terminating unit for fault-locating purposes. To achieve this, the terminal station concerned must be manned. The invention deals with the case in which an intermediate station with two connected line terminating units needs to be inserted in a transmission system of this type. An intermediate station of this type needs to be manned for fault-locating purposes. The object of the invention is to dispense with this manning. For this purpose, the remote feed loop is through-connected in the intermediate station and the series connection of a diode and a resistor is provided for DC fault-locating purposes. Furthermore, means are provided to form a test loop for pulse error location.
Patent DE-3911625-A1 (DE)
Title: Attaching dental instrument to flexible hose - involves fitting OD greater than nominal ID of hose
Inventor: LUFT HANS JOACHIM
IPC: A61C17/08
Filed: 1989-04-09
Abstract: The dental instrument is fitted to the end of a flexible hose through which air or water is supplied. The flexible hose is constructed from an inner flexible plastics tube which is surrounded by a coil of wire-like plastics with a strip of plastics wound between the coils of the wire-like plastics. These coils are then enclosed in an outer tube of flexible plastics. This form of construction results in the hose being unable to transmit any axial load.  The hose is connected to the instrument by a fitting (11) with a dia. (12) which has an OD which lies between the max. ID of the hose and the nominal inside dia. of the hose. USE - Dental instruments.
Patent DE-3922981-A1 (DE)
Title: Vertically sliding door with horizontal panels
Inventor: HOERMANN THOMAS J DIPL ING
IPC: E06B3/48
Filed: 1989-07-12
Abstract: The vertically sliding door is constructed from horizontal panels which are connected to each other by hinges. Each panel has a U-shaped arm (8) projecting from its lower edge which forms a hinge with a bracket (10) fixed to the upper edge of the panel immediately below with a horizontal hinge pin (7).  The lower edge of the upper panel (2) has a concave surface which fits over the convex surface of the lower panel (3).  The lower end of the concave surface of the upper panel rests on a sealing strip (33) fitted in a groove in the lower panel.  The upper part of the concave part of the upper panel rests directly on the upper edge of the lower panel. The panel dimensions and the position of the hinge axis are such that there is a compressive force between the panels.  @(14pp Dwg.No.1,2/9)@
Patent DE-3927088-A1 (DE)
Inventor: STRONG RICHARD DOUGLAS
IPC: C08K5/14
Filed: 1989-08-17
Abstract: The composition, for use in fabricating fuel pump isolation and insulation members, comprises an acrylonitrile/ butadiene copolymer; a phthalate plasticizer; carbon black, a calcium carbonate or polytetrafluorethylene; processing aids; and a catalyst for curing the copolymer. The isolation members can be used immersed in gasoline, gasohol and fuel containing other additives.
Patent DE-3931240-A1 (DE)
Inventor: YAMAOKA FUMIYUKI
IPC: F16F9/46
Filed: 1989-09-19
Abstract: A shock absorber having an approximately linear variation of damping force with piston stroke speed includes a first damping force generating means (pathway 7e', 7e, 7c, B) providing greater variation at low piston speed and a second damping force generating means (pathway 3c, 15b/15c, 15a, 15d/15e, 3d, 7j, 7d, B) providing greater variation at higher piston speeds. The damping force generating means can comprise (Fig 4) a bottom valve pathway having two disc valves in series. <IMAGE>
Patent DE-3934456-A1 (DE)
Title: Mfg. mercury switch input-shaped housing - with sphere heat drying and vacuum sealing mercury in sterilised container
Inventor: SCHIEMANN SIEGFRIED
IPC: H01H29/04
Filed: 1989-10-14
Abstract: A ball of mercury (7) is disposed inside a can type housing (1) with an isolating cover (2) vacuum sealed to the front of the housing (1). The housing (1) and cover (2) are cleaned, boiled and dried. The mercury is dried for several hours at a high temp., after which it is freed from the oxide layer which has formed and a predetermined volume is fixed inside the housing (1). The isolating cover (2) is then vacuum sealed to the housing (1). USE/ADVANTAGE - Steady switching function. Failure rate due to dust, etc. is reduced used in, e.g. car safety belts, smoothing iron giving automatic switch-off upon assumption of unnatural position. Same safety function can be applied to chain saw.
Patent DE-3937943-A1 (DE)
Title: Liq. crystal cell substrate plate bonding - uses under-pressure to extract air from hollow zone for atmospheric pressure bonding
Inventor: BROSIG STEFAN DR
IPC: G02F1/1339
Filed: 1989-11-15
Abstract: The bond substrate plates together, for liq. crystal cells, the plates are pressed together and any air is evacuated from the hollow zones between them through the filling openings, while the outsides of the plates are subjected to ambient atmospheric pressure. The pressure forces on the adhesive strips are applied by the effect of the underpressure in the hollow zone. The filling opening is recessed in one corner of the cell. A self-sealing bag-shaped connection piece is passed over the corner of the cell contg. the filling opening, and the connection is subjected to underpressure. A high viscose liq. crystal is applied to one of the substrate plates before they are assembled. The adhesive strips are laid to form a channel of a given length from the filling opening, and their edges run from the channel to the sides of the plate. After the air has been evacuated, and before the adhesive has hardened, the adhesive strips in the channel section are further heated and softened so that the channel edges disperse towards each other and seal the channel. USE/ADVANTAGE - The method requires no press equipment, and uses only a vacuum connection to the hollow interior of the asssembled plates.
Patent DE-3938610-A1 (DE)
Title: Shaft seal with slip ring - has outer and inner rings with flanged bushings, toothed rims and ring tension spring
Inventor: HERWIG HELMUT DIPL ING
IPC: F16J15/34
Filed: 1989-11-21
Abstract: The shaft-seal consists of a slip-ring (12) possessing a radial sealing surface on the outside at one end and over which grips an outer ring (14) with a radial inner sealing-surface on the inside at one end. An inner ring (10) has holes in it. The inner and slip rings are flanged bushings with an outer flange (20,22). The flanged bushing (18) forming the slip ring moves axially on the flanged bushing (16) forming the inner ring (10). Conically tapering and interlocking toothed rims (40,42) form a support for a ring tension spring (52). USE/ADVANTAGE - The shaft seal is axially flexible and gives internal cooling.
Patent DE-3941960-A1 (DE)
Title: Vehicle elapsed parking time display device - has clock mechanism switched between normal and parking mode dependent on vehicle operation
Inventor: SPERR GERD
IPC: G07C1/30
Filed: 1989-12-20
Abstract: The display device has a time display element (3) which is visible from outside the vehicle, with automatic adjustment of the time display element (3) via a clock mechanism (9) which is controlled via a sensor (10) for the vehicle operating condition. The latter alllows the clock mechanism (9) to operate in a normal mode when the vehicle is moving and in a parking mode when the vehicle is at a standstill. Pref. the sensor (10) is provided by the vehicle ignition switch, or by a vibration sensor. ADVANTAGE - Simple checking of vehicle parking duration.
Patent DE-3942229-A1 (DE)
Title: Total inorganic carbon extn. before carbon analysis - uses acid in gaseous form mixed with extractor gas and water
Inventor: VOSS WERNER
IPC: G01N31/00
Filed: 1989-12-21
Abstract: For determining carbon in water, the total inorganic carbon is just extracted, as a mixt. of gas, CO2 and volatile organic carbon, by passage through the sample of gas, esp.  air, contg. acid, e.g. HCl in gaseous form. The acid gas may be metered as gas into the extractor gas flow or supplied thereto in liq. form. Acid gas concn. is adjusted in dependence on extractor gas temp. Extractor gas, acid gas and water may be sprayed into a stripper chamber from which the water, freed of inorganic carbon, and the extractor gas are separately discharged.. The extractor forms part of a device for determining total organic carbon, volatile organic carbon, or other related analyses. ADVANTAGE - Use of gaseous acid greatly simplifies TIC sepn., and permits controlled addn. of smaller vol. of water.
Patent DE-4004437-A1 (DE)
Inventor: HOU PEIHONG
IPC: H04N5/14
Filed: 1990-02-14
Abstract: In this method, first a global motion detection and then a local motion correlation is effected. In the local motion correlation, the known signal variation with time is used as reference.
Patent DE-4007645-A1 (DE)
Title: Water-ski board - has tow-rope attachment movable in transverse direction
Inventor: LUECKE HANNS W
IPC: B63B35/81
Filed: 1990-03-10
Abstract: The water-ski board is attached by towrope (2) to a boat. It has components (17) on the underside forming a keel, and attachment point (8) of the rope is movable at right angles to the towing direction by steering gear (7, 9) on the board (1). There can be a transverse guide at the forward end of the board, and along which the attachment point is moved by the rider. ADVANTAGE - The rider can fan out to the side of the boat as with water-skis.
Patent DE-4009031-A1 (DE)
Title: Fibre reinforced plastics hollow shaft - has tubular connections made of straddling dowels and coiled fibre layers
Inventor: SCHUERMANN HELMUT
IPC: F16C3/02
Filed: 1990-03-21
Abstract: The fibre-reinforced plastics hollow shaft has a part (1) formed of coiled fibre-layers, and pre-fabricated connections permanently fixed to the ends of the shaft-part (1). The connections each consists of pipes (2) containing a straddling-dowel (5) and attached at even distances round the ends of the shaft-part by coiled fibre layers (3). The pipes are embedded in a fibre-reinforced plastics support (4). USE/ADVANTAGE - The hollow shaft is easily produced and has connections transmitting tensional and compressive forces.
Patent DE-4011373-A1 (DE)
Title: Optical identification of bobbin - has light beams focussed by a lens for reflected light to pass through the centre of the same lens
Inventor: WIRTZ ULRICH DR ING
IPC: B65H67/06
Filed: 1990-04-07
Abstract: The optical identification system for bobbins and/or their sleeves and/or their carriers, in the assembly to feed and remove bobbins at textile machines, has the light beams of several projectors at a number of points parallel to the central optical axis of a lens assembly so that they can converge to a focussing point. The reflected light from the target passes through the centre of the same lens assembly to a light receiver on or close to the central optical axis. The reflective surface of the target is placed at the focussing point of the common lens assembly. ADVANTAGE - The system can detect the colour and grey values of bobbins where there is little available space.
Patent DE-4015710-A1 (DE)
Title: Non-electric sound amplifier - is in form of half dome and is constructed from rigid panels and support bars
IPC: G10K11/08
Filed: 1990-05-16
Abstract: A non-electric sound amplifier is constructed from a set of rigid panels (1, 2, 3, 4) and support bars (5, 6) of which the weight of any one part is not greater than 100 kg. The individual parts are provided with means of fastening one to another. When assembled the parts form a structure which forms a half dome under which a group of singers can stand. The height and dia. of the half dome can be increased by fitting additional flat rigid panels around the base and along the vertical centre line. USE - Non-electric amplification of sound from group of singers.
Patent DE-4018221-A1 (DE)
Title: Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe
Inventor: SERWE KARL-HEINZ
IPC: F02M31/16
Filed: 1990-06-07
Abstract: The fuel supplied to an internal combustion engine is pre-heated before flowing to the carburettor. The fuel is heated by flowing through a copper pipe which is coiled around a flexible hose through which the engine cooling water circulates. To ensure high thermal conductivity electrolyte copper is used for the pipe coil. The fuel is thus heated without the use of an external source of heating. The pre-heating of the fuel reduces the fuel consumption of the engine for a given power output. USE - Internal combustion engine.
Patent DE-4020464-A1 (DE)
Title: Brake light circuit for motor vehicle - provides variable flashing rate to indicate degree of braking
Inventor: GLEINSER GERHARD
IPC: B60Q1/44
Filed: 1990-06-27
Abstract: The brake lights (1) are connected to a control unit (2) to operate the lights w.r.t. the braking and the retardation. Increase in brake pressure results in a flushing brake light, with the frequency increasing with pressure. A steady brake light indicates moderate braking or moderate retardation, e.g. reducing throttle settling. If the vehicle is being driven below a set road speed, a fixed flasher circuit (3) provides a slower flashing speed to warn followinmg drivers. A priority program selects the most appropriate brake light mode. ADVANTAGE -Improved safety on all road conditions, can be retrofitted.